hi i figgered it out!!!! citroen c2 eco mode wont start// take the plugs from your computer box situated next to your battery, look for any missing pins rust or water,if a pin is missing(all the pins should be there no open spaces!!!) open the computer box locate the pin connector solder a new wire on and connect it to the incoming wire.put back together and it should start.Remember eco mode is only there to tell you that you're saving power now, not an indicator of something else that is wrong.so if there is nothing else wrong with your car it should start even if eco mode is on.hope this helped,i fixed it, so can you.
Posted on Thursday 7th of February 2013Don't understand this? Ask a question